Process of manufacturing packing for flanges and stuffing-boxes.



No. 680,86U. Patentm Mug. 2U, IgM. L. HAUSLEHMER.

PROCESS 0F MANUFACTURING PACKING FR IFLNQGES N SUFFIMG BXES.

(Application Bled Apr. 11, 1901.)

(No Model.)

Nitrnn Smarts Paritair rricn.

LEOPOLD HAUSLEI-INER, OF VIENNA, AUSTRIA-HUNGARY, ASSIGNOR TO ISIDORLANDAU ER AND FERDINAND BLOCH, OF SAME PLACE.

PHGCESS OF MANUFACTURING PACKING FOR FLANGES FIND STUFFlNG-BOXES.

SPECIFICATION forming part of Letters Patent No. 680,860, dated August20, 1901. Application fled April 1l, 1901. SerialNo. 55,432. (Nospecimens.)

To all whom t nea/y concern:

Be it known that I, LEOPOLD HAUsLEHNnR, a subject of the Emperor ofAustria-Hu ngary, residing at 12, Nobilegasse, Vienna XIV, in theProvince of Lower Austria, in the Empire of Austria-Hungary, haveinvented certain new and useful Improvements in Processes ofManufacturing Packing for Flanges and Stuffing-Boxes; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will en able others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to letters of reference marked thereon, whichform a part of this specification.

This invention relates to a process for the manufacture of a packing forflanges and stuffing-boxes, said packing being essentially composed ofthe packing material having an annular shape and provided with anenvelop made of galvanically-precipitated metal.

This process has for its purpose to encompass as closely as possible thepacking material with metal, in order to spare the packing material andto enable it to be used repeatedly after replacement of the metallicenvelop, the materialbeing merely held together by the envelop.

This process is characterized,essentially,by the fact that upon a moldcorresponding in its shape with that of the annular packing material agalvanic precipitate of metal is produced, which precipitate is thenremoved from the outer circumference of the ring, whereupon the envelopis stripped off from the mold, which it covers on three sides, and thisenvelop is then slid upon the ring of packing material.

In the accompanying drawings, Figure l shows in cross-section a mold aof a well-conducting metal or some other resisting material, which hasthe shape of the packing-ring to be produced. Upon this mold an enveloph of metal, preferably of copper, is produced in a galvanic bath, as canbe seen frcm Fig. 2. For permitting the removal of the envelop from themold the outer part c of the circunrl ference is filed ofi", so that, asshown in Fig. 3, the mold remains Within the metallic envelop, which isopen on the outer edge and is U-shaped in section. The envelop is thenstripped off from the mold, the inflections and crumples are smoothed byheating and hammering, and the metallic envelop thus obtained, which isrepresented independently in Fig. 4, is then slipped upon a ring ct,made of packing material-such as lead, pasteboard, asbestos, dac-theshape of this ring corresponding with that of the mold a, so that apacking-ring is obtained which has`in cross-section the shape shown inFig. 3. This metallic body may iinally be cut or stamped on itscircumference, according to the desired size and shape.

The thickness of the galvanic precipitate varies according to theparticular requirements in respect of the durability of thepacking-body.

The interior bridge connecting the two annular parts of the metallicenvelop on their inner edge Will vary in its height according to thedesired thickness of the finished packingning.

I claim- The process, which consists in forming upon an annular mold adeposit of a metal softer than iron, removing the deposit from theperiphery of the mold, stripping the metallic sheath thus obtained fromsaid mold and filling the sheath with a packing material, for thepurpose set forth.

In testimony that I claim the foregoing as my invention I have signed myname in presence of two subscribing lWitnesses.

LEOPOLD IIAUSLEHNER.

iVitnesses:

JOSEF RUBRARCH, ALvns'ro S. Hocus.

